Request for Intravenous Dopamine - Weight based calculation with rateQuantity

{
  "resourceType": "MedicationRequest",
  "id": "medrx0336",
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p><b>Generated Narrative: MedicationRequest</b><a name=\"medrx0336\"> </a></p><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\">Resource MedicationRequest &quot;medrx0336&quot; </p></div><p><b>identifier</b>: id: 12345689 (OFFICIAL)</p><p><b>status</b>: completed</p><p><b>intent</b>: order</p><h3>Medications</h3><table class=\"grid\"><tr><td>-</td><td><b>Reference</b></td></tr><tr><td>*</td><td><span title=\"  Linked to a RESOURCE Medication  \"><a name=\"med0336\"> </a></span><blockquote><p/><p><a name=\"med0336\"> </a></p><p><b>doseForm</b>: Injection Solution (qualifier value) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#385219001)</span></p><blockquote><p><b>ingredient</b></p><h3>Items</h3><table class=\"grid\"><tr><td>-</td><td><b>Concept</b></td></tr><tr><td>*</td><td>Dopamine <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/3.1.0/CodeSystem-v3-rxNorm.html\">RxNorm</a>#1114879)</span></td></tr></table><p><b>strength</b>: 400 mg<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code mg = 'mg')</span>/500 mL<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code mL = 'mL')</span></p></blockquote><blockquote><p><b>ingredient</b></p><h3>Items</h3><table class=\"grid\"><tr><td>-</td><td><b>Concept</b></td></tr><tr><td>*</td><td>Dextrose 5% injection USP <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"http://terminology.hl7.org/3.1.0/CodeSystem-v3-ndc.html\">National drug codes</a>#0264-7510-10)</span></td></tr></table><p><b>strength</b>: 5 g<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code g = 'g')</span>/100 mL<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM code mL = 'mL')</span></p></blockquote></blockquote></td></tr></table><p><b>subject</b>: <a href=\"patient-example-a.html\">Patient/pat1: Donald Duck</a> &quot;Donald DUCK&quot;</p><p><b>supportingInformation</b>: <a href=\"observation-example.html\">Observation/example</a></p><p><b>authoredOn</b>: 2015-01-15</p><p><b>requester</b>: <a href=\"practitioner-example-f007-sh.html\">Practitioner/f007: Patrick Pump</a> &quot;Simone HEPS&quot;</p><blockquote><p><b>dose</b></p><blockquote><p><b>dosageInstruction</b></p><p><b>sequence</b>: 1</p><p><b>text</b>: Dopamine 4mcg/kg/min</p><p><b>timing</b>: Duration 33.33?ngen-7?, Do Once</p><p><b>route</b>: Intravenous route (qualifier value) <span style=\"background: LightGoldenRodYellow; margin: 4px; border: 1px solid khaki\"> (<a href=\"https://browser.ihtsdotools.org/\">SNOMED CT</a>#47625008)</span></p></blockquote></blockquote></div>"
  },
  "contained": [
    {
      "resourceType": "Medication",
      "id": "med0336",
      "doseForm": {
        "coding": [
          {
            "system": "http://snomed.info/sct",
            "code": "385219001",
            "display": "Injection Solution (qualifier value)"
          }
        ],
        "text": "Injection Solution (qualifier value)"
      },
      "ingredient": [
        {
          "item": {
            "concept": {
              "coding": [
                {
                  "system": "http://www.nlm.nih.gov/research/umls/rxnorm",
                  "code": "1114879",
                  "display": "Dopamine"
                }
              ]
            }
          },
          "strengthRatio": {
            "numerator": {
              "value": 400,
              "system": "http://unitsofmeasure.org",
              "code": "mg"
            },
            "denominator": {
              "value": 500,
              "system": "http://unitsofmeasure.org",
              "code": "mL"
            }
          }
        },
        {
          "item": {
            "concept": {
              "coding": [
                {
                  "system": "http://hl7.org/fhir/sid/ndc",
                  "code": "0264-7510-10",
                  "display": "Dextrose 5% injection USP"
                }
              ]
            }
          },
          "strengthRatio": {
            "numerator": {
              "value": 5,
              "system": "http://unitsofmeasure.org",
              "code": "g"
            },
            "denominator": {
              "value": 100,
              "system": "http://unitsofmeasure.org",
              "code": "mL"
            }
          }
        }
      ]
    }
  ],
  "identifier": [
    {
      "use": "official",
      "system": "http://www.bmc.nl/portal/prescriptions",
      "value": "12345689"
    }
  ],
  "status": "completed",
  "intent": "order",
  "medication": {
    "reference": {
      "reference": "#med0336",
      "display": "Dopamine 400mg in 500mL D5W"
    }
  },
  "subject": {
    "reference": "Patient/pat1",
    "display": "Donald Duck"
  },
  "supportingInformation": [
    {
      "reference": "Observation/example"
    }
  ],
  "authoredOn": "2015-01-15",
  "requester": {
    "reference": "Practitioner/f007",
    "display": "Patrick Pump"
  },
  "dose": {
    "dosageInstruction": [
      {
        "sequence": 1,
        "text": "Dopamine 4mcg/kg/min",
        "timing": {
          "repeat": {
            "duration": 33.33,
            "durationUnit": "h"
          }
        },
        "route": {
          "coding": [
            {
              "system": "http://snomed.info/sct",
              "code": "47625008",
              "display": "Intravenous route (qualifier value)"
            }
          ]
        },
        "doseAndRate": [
          {
            "type": {
              "coding": [
                {
                  "system": "http://terminology.hl7.org/CodeSystem/dose-rate-type",
                  "code": "ordered",
                  "display": "Ordered"
                }
              ]
            },
            "rateQuantity": {
              "value": 4,
              "unit": "ug/kg/min",
              "system": "http://unitsofmeasure.org"
            }
          }
        ]
      }
    ]
  }
}